Mating of LVA

NASA's Cassini has found salt in Saturn's E ring, hinting that the moon Enceladus could have an underground liquid reservoir, perhaps even an ocean.

Project Scientist Linda Spilker and Mission Planner Molly Bittner answer questions about Cassini's Ring-Grazing orbits during this Jan. 30, 2017 Facebook Live event. 

The Cassini spacecraft arrived at Saturn in June 2004 and is now halfway through its mission. A new photo essay showcases some stunning images returned by the mission.

How can you communicate with Mars spacecraft when the Sun is in the way? Learn more about 'solar conjunction' in this 60-second video.

The tumbling and irregularly shaped moon Hyperion rotates away from the Cassini spacecraft in this movie taken during a distant encounter in Dec. 2005.

Arrival at Saturn

Classic video explaining the history, debate and continuing discussion of the definition of a planet.

This animation re-creates the final descent of ESA's Huygens probe as it landed on Titan on Jan. 14, 2005, after it was dropped off by NASA's Cassini spacecraft.

Learn more about black holes, how to find them and how to stay safe should you ever get a chance to visit one.

NASA's Voyager 2 spacecraft gave humanity its first glimpse of Neptune and its moon Triton in the summer of 1989.

The shadow of Saturn's moon Tethys seems to disappear as it crosses the planet's rings, demonstrating variations in the density of particles across the rings.

This colorful spectrogram represents data collected by Cassini's Radio and Plasma Wave Science instrument as it crossed through Saturn's D ring on May 28, 2017.

See all the planets, plus mission updates from comet and asteroid missions Dawn and Rosetta.

Everyone likes to check the weather in a far away destination before they travel there. This is especially true for spaceflight, where the destination may be where no one has gone before.

The Seven Sisters meet the evening star, Mars continues its getaway, and unpacking the Moon illusion.

Ceres' lack of giant impact basins presents a puzzle to scientists.

Great Red Spot

As Titan Turns

Thomas Valdez tells how his early penchant for tinkering with things followed a path that led him to a career as a research engineer

Explore the process that Johannes Kepler undertook when he formulated his three laws of planetary motion.

A curated just-for-kids NASA video playlist. 

Great Dark Spot  

The Helioseismic Magnetic Imager (HMI) aboard the Solar Dynamics Observatory takes a series of images every 45 seconds in a very narrow range of wavelengths in visible light of the solar photospher...

Here is a rover's eye view of driving, scooping and drilling during Curiosity's first year on Mars, August 2012 through July 2013.

Probe Landing on Titan